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Common minnows tend to associate with familiar shoalmates, but new alliances can form when different groups encounter. In an experiment in which common minnows from different groups were introduced to a common environment and monitored, they associated significantly more frequently with familiar individuals than unfamiliar individuals.
Fathead minnow (Pimephales promelas), also known as fathead or tuffy, is a species of temperate freshwater fish belonging to the genus Pimephales of the cyprinid family. The natural geographic range extends throughout much of North America, from central Canada south along the Rockies to Texas, and east to Virginia and the Northeastern United States. [2]
White Clouds are generally peaceful and happy to coexist with other fish, as long as they are not put in a tank with larger fish that may eat them. The minnows are usually top or middle-level swimmers and rarely swim close to the bottom of a tank. A typical lifespan can last for five years or longer. [8]
Generally, minnows breed with the slightest rainfall and within a wide temperature range. Contrary to the long-standing presumptions, climate change poses 'negligible' threat to minnows' reproduction. Minnows are also flexible in attaining pre-spawning fitness, which makes them avoid 'skipped spawning' decisions while facing climatic variabilities.
The average chub ranges in size from 127–178 mm (5.0–7.0 in) in length, with the largest chub documented to be 197 mm (7.8 in) long. [6] They can be identified from other common minnow species by the black "moustache" on their upper lips, along with a black dot on their dorsal fins.
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With over 300 known species, there are more species of minnows native to North America's fresh waters than any other fish. [2] Minnows can be hard to distinguish because many look alike. [3] All minnows have one dorsal fin, ventral fins near the anus, a lateral line system (in most species), and smooth, round cycloid scales. [4]
The red shiner or red-horse minnow (Cyprinella lutrensis) is a North American species of freshwater fish in the family Cyprinidae.They are deep-bodied and laterally compressed, [2] and can grow to about 3 inches (7.6 cm) in length.